Preparation method of flame-proof sea silk new material

Abstract

This invention disclosed a method of produce new material of flame retardant alginate fiber: make sure the proportion of G chain segment and M chain segment which in the molecular structure is 1:1 - 1:3, the potassium alginate's weight percent of solute is 4-7% or the mixture of potassium alginate and sodium alginate be fully predissolved and dissolved and after adjustment viscosity, filter and defoamed by sodium hypochlorite or hydrogen peroxide, produce alginate fiber material by solution spinning at room temperature, the draft proportion of fiber is 120-300%. The limited oxygen index of the fiber reaches to 34, the fiber's tensile strength is more than 3.5cN / tex, the linear density is 2.2-3.5 dtex. The fiber produced by this method is flame retardant, high strength of fracture and bio-degradable, and so on, so which can be used to produce flame retardant textiles by pure spinning or blended. This invention disclosed a method of produce a new material of flame retardant alginate fiber: make sure the proportion of G chain segment and M chain segment which in the molecular structure is 1:1 - 1:3, the potassium alginate's weight percent of solute is 4-7% or the mixture of potassium alginate and sodium alginate be fully predissolved and dissolved and after adjustment viscosity, filter and defoamed by sodium hypochlorite or hydrogen peroxide, produce alginate fiber material by solution spinning at room temperature, the draft proportion of fiber is 120-300%. The limited oxygen index of the fiber reached to 34, the fiber's tensile strength is more than 3.5cN / tex, the linear density is 2.2-3.5 dtex. The fiber produced by this method is flame retardant, high strength of fracture and bio-degradable, and so on, so which can be used to produce flame retardant textiles by pure spinning or blending.

Description

technical field [0001] The present invention relates to a method for preparing a flame-retardant seaweed fiber new material, more particularly to a new seaweed fiber material prepared by wet spinning and stretching heat setting using potassium alginate and sodium alginate as spinning raw materials. It belongs to the field of polymer materials. Background technique [0002] In recent years, new fibers have emerged one after another, and the continuous innovation of regenerated cellulose fibers is one of the highlights, which provides new development opportunities for the world's textile and clothing industries. Cellulose fiber is favored by people because of its excellent wearability, but the cultivation of cotton occupies a large amount of farmland, and cotton fiber is flammable, so it must be modified by flame retardant to meet the needs of some protective clothing. Viscose fiber is also a flammable fiber, and a large amount of three wastes are produced in the production p...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the unsatisfactory problems of existing seaweed fibers in terms of elasticity, strength and color, the present inventor has conducted in-depth research, and found that by controlling the composition of the spinning raw material alginate and the proportion of the segment structure, and by adjusting the spinning solution Viscosity, control spinning coagulation and heat setting process, can get a kind of flame retardant seaweed fiber material with excellent comprehensive performance

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